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Title: Protective effect of ethanolic and water extracts of sea buckthorn (<i style="">Hippophae rhamnoides</i> L.) against the toxic effects of mustard gas
Authors: Vijayaraghavan, R
Gautam, Anshoo
Kumar, Om
Pant, S C
Sharma, Manoj
Singh, Seema
Kumar, H T Satish
Singh, Anand Kumar
Nivsarkar, Manisha
Kaushik, M P
Sawhney, R C
Chaurasia, O P
Prasad, G B K S
Keywords: Glutathione
<i style="">Hippophae rhamnoides</i>
Oxidative stress
Sulphur mustard
Issue Date: Oct-2006
Publisher: CSIR
Abstract: Ethanolic extract of <i style="">H. rhamnoides</i> L. leaf (HL-EOH), water and ethanolic extract of <i style="">H. rhamnoides</i> fruit (HF-W and HF-EOH), and <i style="">H. rhamnoides</i> flavone from fruit (HR-flavone) were evaluated against percutaneously administered sulphur mustard (SM), a chemical warfare agent. The animals administered with SM (9.7, 19.3 and 38.7 mg/kg) died at various days depending upon the dose and there was a significant reduction in the body weight. The <i style="">H. rhamnoides</i> extracts (1g/kg; 3 doses; po) significantly protected the lethality, with a protective index of 2.4, 1.7, 1.7 and 2.2 for HL-EOH, HF-W, HF-EOH and HR-flavone respectively. Reduced glutathione (GSH) and oxidized glutalthione (GSSG) levels were reduced, and malondialdehyde (MDA) was elevated after percutaneous administration of SM. Oral administration of HL-EOH and HR-flavone significantly protected the body weight loss. Recovery in the levels of GSH, GSSG and MDA were also observed following oral administration of HL-EOH and HR-flavone. All the extracts were non-toxic and the LD<sub>50</sub> was more than 5 g/kg. The present study shows that percutaneous administration of SM induces oxidative stress and ethanolic extract of leaf of <i style="">H. rhamnoides</i> and <i style="">H. rhamnoides</i> flavone from fruit can significantly protect it.
Description: 821-831
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Appears in Collections:IJEB Vol.44(10) [October 2006]

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